Vortex Razor® HD Gen II-E1-6x24 Owner's manual

Brand: Vortex

Model: Razor® HD Gen II-E1-6x24

Type: Owner's manual

The VorTex

VMr-2

reTicle

VMR-2 MRAD Reticle

You have purchased a Vortex

riﬂescope equipped with

the VMR-2

reticle. Designed to maximize long distance

shooting and ranging abilities, the VMR-2 mrad reticle

can be used to effectively determine ranges, holdovers,

windage corrections and moving target leads.

MRAD Subtensions

VMR-2 Subtensions

Subtensions measured in mrads. Reticle image shown for

representation only.

The VMR-2 MRAD reticle is based on the milliradian,

or mrad for short. Mrad unit of arc measurements are

based on the radian. A radian is the angle subtended

at the center of a circle by an arc that is equal in

length to the radius of the circle. There are 6.283

radians in a circle and 1000 milliradians in a radian

for a total of 6,283 milliradians (mrads) in a circle.

An mrad will subtend 3.6 inches at a distance of 100

yards [10 cm at 100 meters]. This riﬂescope with

mrad adjustments uses .2 mrad clicks which subtend

.72 inches at 100 yards [2 cm at 100 meters].

Second Focal Plane reTicleS

Second focal plane (SFP) reticles are located near

the scope’s eyepiece behind the image erecting

and magnifying lenses. This style of reticle does

not visually change in size when you change the

magniﬁcation. The advantage of an SFP reticle

is that it always maintains the same ideally-sized

appearance. When shooting with this SFP scope,

be aware that the listed reticle subtensions used for

estimating range, holdover, and wind drift correction

are only accurate at the highest magniﬁcation.

.65

∅=.15 (center dot)

.15

.18

(top line only)

.15

Target Size (Yards) x 1000

MRADs Read

Range (Yards)

To use these formulas, it will be necessary to know the

measured size of the target or a nearby object. Using

either the vertical or horizontal mrad scale, place the

reticle on the target of known measurement and read

the number of mrads spanned. Maximum accuracy

in ranging will be obtained by calculating exact mrad

measurements—mrads should be estimated in 1/10s if

possible.

Ranging

The VMR-2 mrad reticle is very effective for ranging using

simple formulas.

Target Size (Meters) x 1000

MRADs Read

Range (Meters)

Target Size (CM) x 10

MRADs Read

Range (Meters)

Mrad ranging ForMulaS

Ranging a target stand that is one yard tall at 2 mrads to get

500 yards.

1 x 1000

2 mrads

500 Yards=

Example

Target Size (Inches) x 27.8

MRADs Read

Range (Yards)

Elevation Holdovers

Once the distance has been calculated using the

VMR-2 or a laser rangeﬁnder, the VMR-2 can be used

for rapid holdover correction for the bullet drop of the

weapon system being used. To get the most beneﬁt out

of a riﬂescope equipped with the VMR-2 reticle, Vortex

Optics highly recommends shooters learn their bullet

drop numbers and windage/lead corrections in mrads

rather than inches or MOAs. Remember that 1 mrad

equals 3.44 MOA or 3.6 inches at 100 yards or 10 cm

at 100 meters.

Since the VMR-2 reticle is hashmarked in 1 mrad

increments, it is easy to quickly select the correct drop

reference line once the shooter knows the bullet drops

and windage/lead corrections in mrads. If the shooter

prefers to dial the come ups for bullet drop using the

elevation knob, knowing bullet drops in mrads will allow

for much faster adjustments because the mrads can be

quickly read on the elevation knob.

4 mrad reticle holdover correction for 600-yard shot. No wind.

Example

Windage and Moving Targets

The VMR-2 reticle is highly effective when used for

wind and moving target leads. Using the reticle for

effective windage and moving leads will require a

thorough knowledge of your weapon system’s ballistic

performance under varying conditions and experience

in reading wind strengths and target speeds. As in

bullet drops, it is imperative the shooter learn their

particular weapon’s windage/moving target corrections

in mrads rather than inches or MOAs. Always hold the

reticle into the wind when correcting for wind drift.

When dialing elevation come ups, the center horizontal

crosshair will be used for windage or moving target

leads. Mrad marks on the horizontal crosshair are

graduated in 1 mrad increments.

Basic windage correction on center crosshair

2.6 mrad reticle correction for 15 mph wind at 600 yards.

Elevation is already dialed into turret.

15 mph wind

Full value wind at 90°

Example

When dialing elevation come ups, the center horizontal

crosshair will be used for windage or moving target

leads. Mrad marks on the horizontal crosshair are

graduated in 1 mrad increments.

When estimating moving target leads, the mrad

marks on the center horizontal crosshair can be used.

Estimating moving leads will require knowing yardage

distance, wind speed, moving target speed and total

bullet ﬂight times including riﬂe lock time. Bullet ﬂight

times can be roughly calculated based on fps velocities

or a ballistic calculator.

Basic moving lead correction

Note: Correctly estimating moving leads is very difﬁcult

and requires considerable practice and knowledge

beyond the scope of this manual.

2 mrad reticle correction for a target moving 3 mph at a

distance of 600 yards. Elevation already dialed into turret.

Moving Direction

Example

M-00180-0

Vortex Razor® HD Gen II-E1-6x24 Owner's manual

Vortex Razor® HD Gen II-E1-6x24 Owner's manual

Vortex Razor® HD Gen II-E1-6x24 Owner's manual

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